Welcome to the Lothians Radio Society

Scottish Charity number SC045038

  • LRS Messages of the Day

    TONIGHT – Wed 15th Oct 2025: LRS Surplus Sale at St. Fillan’s Church, Buckstone Drive, EH10 6PD. Doors open 7.30pm, 8pm start.

    Sat 18 Oct 2025 : 11:00am MoC Goudie Lecture – Britain’s Contribution to Victory in World War II by Roy Johnstone, followed by buffet lunch.

    Tues 28 Oct 2025 – Bletchley Park talk at Newington Library – see News Item, below.

    Sat 1 Nov 2025 – GMRT-2025 – Only 2 places left – book now! See Rallies etc below.

LRS MEETINGS

  • PLEASE NOTE LECTURE TIME IS 11:00 NOT 11:30AM.

  • AUTUMN 2025

    Wed 15th Oct (3rd Wed) – 8pm at St Fillan’s Church, Buckstone Drive – LRS Surplus Equipment Sale. Do not arrive before 7:30pm.

    Sat 18 Oct 2025 : 11:00am MoC Goudie Lecture – Britain’s Contribution to Victory in World War II by Roy Johnstone, followed by buffet lunch.

    Wed 29th Oct – Pub Night at Wee Bennet’s Bar, Maxwell St., Morningside Stn.

    Wed 12th Nov at 14:00h at Napier Univ. Craiglockhart – Technological advances in the development of WW2 airborne radar by Prof. Peter Grant. Click for details.

    Wed 12th Nov at 20:00h at BHH: Radio Safari to Eswatini  3DA0 by Malcolm Hamilton GM3TAL 

    Wed 26th Nov – at BHH: Something to do with Beacons by Brian Flynn GM8BJF.

    Wed 10th Dec:  LRS Xmas Curry:  8:00pm at Kahani Indian Restaurant (BYOB), 10 Antigua Street, after pre-dinner drinks at 7:00-7:55pm at Jeremiah’s Tap, Elm Row. 


  • 1st Oct 2025 – Using Ansys HFSS Software for Amateur Radio Projects by Brian Howie GM4DIJ.

    1st Oct 2025 – Using Ansys HFSS Software for Amateur Radio Projects by Brian Howie GM4DIJ.

    Brian discussed the workings of Ansys HFSS = High Frequency RF Simulation… Read more

  • 24 Sept 2025 – LRS Visit to MoC TV Exhibition & Bletchley Park Talk by Pete GM4BYF.

    24 Sept 2025 – LRS Visit to MoC TV Exhibition & Bletchley Park Talk by Pete GM4BYF.

    Speaker Pete GM4BYF was introduced by MoC Chair, Prof Tom Stevenson. Wed… Read more

  • Sat 1 Nov 2025 – Scottish Microwave Round Table (GMRT-2025)

    The 13th Scottish Microwave Round Table GMRT-2025, will go ahead between 10.30h and 17.00h on Saturday 1st  November at the Museum of Communication, Burntisland, Fife. An interesting programme of speakers has been arranged, microwave test facilities will be provided and there will be an opportunity to buy components and microwave-related items. An optional Dinner will be held in the evening at the Kingswood Hotel. Full info / online registration available at https://gmroundtable.org.uk/or email Colin GM4HWO  gm4hwo@gmail.com. Note the event has a maximum capacity of 50 people and only 2 places left –  book now!

    GMRT-2025 Program published (click).

  • Sun 26 Oct 2025 – Galashiels Rally

    Galashiels Rally – GM4YEQ

    Click for details.

  • The LRS operates GM3HAM/P from a great site near Gatehouse of Fleet in Dumfries & Galloway.

    5-6 July 2025 – VHF NFD – see report in About LRS – Contest / Portable.

    (This photo by Andy MM0FMF is in RSGB RadCom Sept 2025, p.80).

test card

RADIO NEWS, SILENT KEYS and FOR SALE / WANTED

Click on image or “read more” to open full article.

Send items to Alan GM3PSP:

webmaster@lothiansradiosociety.com

Items usually archived as News or Silent Keys in LRS Archive after 1 month.

  • 28 Oct 2025 6:00-7:30pm Bletchley Park illustrated talk by Derek Douglas at Newington Library

    28 Oct 2025 6:00-7:30pm Bletchley Park illustrated talk by Derek Douglas at Newington Library

    Derek Douglas is a member of the Colinton Local History Society. (Free) tickets necessary.  https://www.eventbrite.co.uk/e/bletchley-park-an-illustrated-talk-with-derek-douglas-tickets-1785984741439

    Read more

  • 3 Oct 2025 – 75th Anniversary of the Transistor

    3 Oct 2025 – 75th Anniversary of the Transistor

    The 3rd of October 2025 was the 75th anniversary of the patenting of the invention of the transistor by three […]

    Read more

  • 2 Oct 2025 – GM1CNH Norman’s HK Colombia DXpedition

    2 Oct 2025 – GM1CNH Norman’s HK Colombia DXpedition

    Some photos from Norman’s DXpedition to Colombia. (Norman GM1CNH & Peter GM4DTH).   HK3LRB club setting up in park for […]

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  • MyDel 13.8 Volt 30 Amp Switching Power Supply Unit – Dave 6

    MyDel 13.8 Volt 30 Amp Switching Power Supply Unit – Dave 6

    MyDel 13.8 Volt 30 Amp Switching Power Supply Boxed and Unused  ML&s  Price  £80  Only   £40 Tel:  0131 539 2858 Dave […]

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  • 2 ICOM SP-38 Speakers Matching IC-7300 & IC-9700 – Dave 6

    2 ICOM SP-38 Speakers Matching IC-7300 & IC-9700 – Dave 6

    2 x  SP-38  Icom Speakers  Matching  IC- 7300  &  IC- 9700 Boxed as New   ML&s  Price £156 Each             […]

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  • 21 Aug 2025 – Steel Ammo Box – £25 – Pete GM4BYF

    21 Aug 2025 – Steel Ammo Box – £25 – Pete GM4BYF

    For sale: Steel ex army ammunition box. Useful for carrying tools etc. Two handles. 58 x 26 x 26 cm  […]

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  • 17 Aug 2025 – Badger Boards HF Antenna – Norman Stewart GM1CNH

    Badger Boards HF Antenna – wideband folded dipole antenna with balun; N(f) connector; heavy duty centre spacer; termination resistor; 1.5MHz […]

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  • 2 Aug 2025 – ICOM R100 Receiver – Pete GM4BYF

    2 Aug 2025 – ICOM R100 Receiver – Pete GM4BYF

    ICOM – R100 General coverage receiver in excellent condition with all accessories and handbook.  Covers 100kHz to 1.8GHz – AM, […]

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  • 8 Feb 2017 – James Clerk Maxwell – Prof. Tom Stevenson, MoC

    8 Feb 2017 – James Clerk Maxwell – Prof. Tom Stevenson, MoC

    At the meeting of the LRS on 8th February  2017 our good friend Prof. Tom Stevenson of the Museum of Communication in Burntisland presented […]

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  • 25 Jan 2017 – The Williamson Amplifier – Prof Joe McGeough

    25 Jan 2017 – The Williamson Amplifier – Prof Joe McGeough

    The meeting of the LRS on 25th January 2017 was a talk on “How Theo Williamson’s Amplifier Changed the Sound of […]

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  • 8 Jan 2017 – Silent Key – Vic Imamura JA5VQ / MM0JVQ

    8 Jan 2017 – Silent Key – Vic Imamura JA5VQ / MM0JVQ

    It is with great sadness that we record the passing of LRS member Vic Imamura JA5VQ / MM0JVQ at the […]

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  • 11 Dec 2016 – RSGB Recreates First Transatlantic Radio Transmission at Ardrossan

    11 Dec 2016 – RSGB Recreates First Transatlantic Radio Transmission at Ardrossan

    The 1921 transmitter in Greenwich CT courtesy Scotsman. Scottish RSGB Board member Len Paget  GM0ONX and Jason O’Neil GM7VSB recreated the […]

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  • 11 Jan 2017 – Video Evening at ECVS – ‘The Dish’

    11 Jan 2017 – Video Evening at ECVS – ‘The Dish’

    The annual LRS Video Evening was presented by Peter Dick GM4DTH on 11th January 2017 at the Edinburgh Video Society, and was […]

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  • 14 Dec 2016 – Christmas Curry at the Himalaya Tandoori

    14 Dec 2016 – Christmas Curry at the Himalaya Tandoori

    Mike MM0MLB, Kay GM6KAY & OM Pete GM4BYF, Marwyn XYL-GM8OTI, Andy MM0FMF The LRS 2016 Christmas Curry was held on Wednesday 14th […]

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  • 23 Nov 2016 – Valves, Tubes & Bottles – Malcolm Hamilton GM3TAL

    23 Nov 2016 – Valves, Tubes & Bottles – Malcolm Hamilton GM3TAL

      At the meeting of the LRS on 23rd November 2016 Malcolm Hamilton GM3TAL talked about ‘Valves, Tubes and Bottles’. and invited members […]

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  • 15 Oct 2016 – JOTA – Jamboree On The Air at Bonaly Scout Camp

    15 Oct 2016 – JOTA – Jamboree On The Air at Bonaly Scout Camp

    Malcolm GM3TAL operating GB0BSS The Lothians Radio Society again operated in JOTA – Jamboree On The Air – from the […]

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  • 9 Nov 2016 RAYNET FEEDNET Emergency Communications System – Charlie Duncan GM6MUZ, Stan Frey GM8ZQY

    9 Nov 2016 RAYNET FEEDNET Emergency Communications System – Charlie Duncan GM6MUZ, Stan Frey GM8ZQY

    At the meeting of the LRS on 9th November 2016, Charlie Duncan of Lothians RAYNET and Stan Frey talked about the FEEDNET digital […]

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  • 26 Oct 2016 – Aerial Photography – James Gentles GM4WZP

    26 Oct 2016 – Aerial Photography – James Gentles GM4WZP

    James Gentles GM4WZP made a very welcome return to the LRS on 26th October to present Aerial Photography. In James’s last talk, […]

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  • 19 Oct 2016 – LRS Surplus Equipment Sale

    19 Oct 2016 – LRS Surplus Equipment Sale

    LRS Secretary, Mike MM0MLB welcoming everyone. The LRS Autumn Surplus Equipment Sale and raffle was held on Wednesday 19th October […]

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  • 12 Nov 2016 – GMRT-2016 – Scottish Microwave Round Table at MoC

    12 Nov 2016 – GMRT-2016 – Scottish Microwave Round Table at MoC

    GMRT speakers: Stuart G8CYW, John G4BAO, Pete GM4BYF, morning chair John GM8OTI, Sam G4DDK GMRT-2016, the Scottish Microwave Round Table, […]

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